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1.
someone who's robust balls are more awe inspiring than their cock
My balls are rather ordinary but Handy's girlfriend claims he has thunder dumplings underneath his nondescript member.
by provider44 January 14, 2010
 
2.
When your brown eye opens and gas escapes into the cheeks making a loud thunder sound. This is sometimes followed by an ass pastry known as a dumpling.
Man last night I ate some chinese food and an hour later I let one rip. I then left a "thunder dumpling" in my pants.
by Jawesome T. R. July 06, 2011
 
3.
A raunchy, loud fart.
In class today, dropped some serious ass, my thunderdumpling got me kicked out of class.
by Butler Butt Clogger October 18, 2011